Where ZPL para PDF is strong
A clear batch story (ZIP up to 100 files), no signup for the first conversions, and the cheapest paid entry among Brazilian converters (from R$19.90/month). If you convert little and prefer an upload flow, it works.
Where ZPL em PDF wins
No meter: their daily counter exists because each conversion runs on their server — even the R$199.90 plan is sold by conversion count. Ours runs in your browser, so there is nothing to count.
Privacy: your label files, with customer data in them, are not sent anywhere.
Beyond PDF: live preview before printing, PNG output, and fine density control (152–600 dpi).